The innovative HelioSeal innovation in the UltrastarHe6 reduces your TCO because the drives needs less power to operate and cool than air-filled drives. For quality, reliability at a low TCO, trust your data center to HGST. Worlds First Helium HDD: Patented HelioSeal technology enables this new building block for future growth. Industrys First 6TB HDD: Innovative 7Stac disk design enables the worlds highest capacity.

Lowest power consumption with best watts-per-TB: 23% lower idle power per drive, 49% better watts-per-TB. Best density footprint in a standard 3.5-inch form factor: 50% higher capacity. Lighter weight than a standard five-disk 3.5-inch drive: 50g lighter even with two more disks, offering 50% more capacity, 38% lower weight-per-TB.